personally i have used in the past with lightweight and did not like it why gearbox was much louder degraded pretty quickly and noticed shifting becoming more laborious over time never like the idea of mixing different weights of oil to extra s which is what i use now motul was not bad either but did not feel a huge difference vs extra s with extra being easier for me to source so i use that background on car stage wrx monthly autox spirited daily driving k miles tranny fluid change every k editi format good